Outboard motor



FIG. 1 is a top plan view of an outboard motor showing my new design;

FIG. 2 is a side elevational view;

FIG. 3 is a perspective view;

FIG. 4 is a rear elevational view;

FIG. 5 is a front elevational view; and

FIG. 6 is a bottom plan view. 

The ornamental design for an outboard motor, as shown and described. 